中文字幕人妻偷伦在线视频,桃花免费高清在线观看视频,国产精品永久久久久久久久久,成人区人妻精品一区二区在线av

Welcome [ Wuxi Beirun Blower Manufacturing Co., Ltd. ] official website!

Roots blower (Meltblown cloth fan)

Product description
Roots blower is a volumetric fan, impeller end, fan front and rear cover. Principle is the use of two leaf-shaped rotor in the cylinder for relative movement to compress and transport the gas rotary compressor. This blower is simple in structure, easy to manufacture, widely used in aquaculture aerobics, sewage treatment aeration, cement transport, more suitable for low pressure occasions, gas transmission and pressurization system can also be used as a vacuum pump.
working principle
Roots blower is a kind of volumetric fan, there are two three-leaf impeller in the chassis and wall board by the relative rotation of the space, because each impeller is used involute, or the outer cycloid Line, the three leaves of each impeller is exactly the same, while the two impellers are exactly the same, thus greatly reducing the difficulty of processing. Impeller in the processing of the use of CNC equipment to ensure that the two impellers in the center from the same circumstances, regardless of the two impellers rotate to what position, can maintain a certain minimum gap, so as to ensure that the gas leakage within the allowable range.
The impeller and the impeller, the impeller and the chassis, the gap between the impeller and the wall is very small, so that the air inlet to form a vacuum state, the air under the action of atmospheric pressure into the intake chamber, and then, Each of the two blades of the impeller and the wallboard, the cabinet constitutes a sealed chamber, the air into the air chamber during the rotation of the impeller, the two leaves formed by the sealed cavity continuously into the exhaust chamber, The impeller in the air chamber is intermeshing, so that the air between the two leaves squeezed out, so continuous non-stop operation, the air is continuously from the air inlet to the outlet, which is the Roots blower The whole process of work.
亚洲AV无码专区国产乱码不卡| 亚洲国产精品无码久久| 国产熟女高潮精品视频AV| 欧美人禽性动交异族另类| 国产九九久久99精品影院| 亚洲一区二区三区香蕉| 久久99国产精品久久| 久久精品国产96精品亚洲| 日本aaaa片毛片免费观| 欧洲无码一区二区三区在线观看 | 久久精品国产99久久无毒不卡| 免费无码又爽又刺激网站| 午夜男女爽爽影院a片免费| 大码HIPHOP欧美胖MM短袖| 国产精品成人VA在线播放| 99久久无码一区人妻A片| 亚洲最大成人网| 久久久久久久久久久精品尤物| 亚洲 欧美 另类 动漫 在线 | 美妙人妻系列100部| 久久久久久精品免费免费999| 五月丁香综合激情六月久久| 一二三四在线观看免费高清视频| 人妻少妇69式99偷拍| 国产综合久久久久久精品| 国产美女在线精品免费观看| 99精品福利国产在线导航| 色婷婷亚洲精品天天综合影院| 综合网日日天干夜夜久久| AV大片在线无码永久免费| 欧美RAPPER一姐| 最近韩国日本免费观看免费| 最近2019中文字幕电影免费看| 人妻少妇精品久久| 少妇无码吹潮久久精品AV| 欧美av无码久久寂寞少妇| 特级a欧美做爰片黑人| 永久免费观看不收费的软件app| 锦衣之下免费观看电视剧完整版| 久久精品国产亚洲av不卡| 国模无码视频一区二区三区|